Polycarbonate compound composition and method for preparing the same

A polycarbonate compound composition comprising a polymer blend of:

• a polycarbonate including a repeating unit represented by the following Formula 1;
• and
• a polymer including a repeating unit represented by the following Formula 2,
• wherein a weight average molecular weight of the polycarbonate including the repeating unit represented by Formula 1 is 10,000 g/mol to 100,000 g/mol, the polycarbonate including the repeating unit represented by Formula 1 is included in an amount of 60 parts by weight to 90 parts by weight in the polycarbonate compound composition, and the polymer including the repeating unit represented by Formula 2 is included in an amount of 10 parts by weight to 40 parts by weight,
• wherein,
• R1 to R4 are each independently hydrogen, C1-10 alkyl, C1-10 alkoxy, or halogen, and Z is C1-10 alkylene unsubstituted or substituted with phenyl, C3-15 cycloalkylene unsubstituted or substituted with C1-10 alkyl, O, S, SO, SO2, or CO,
• wherein,
• Y is a divalent organic group represented by the following Formula 2-1 or 2-2,
• wherein,
• * is a bonding site.